US Grand Prix preview - all you need to know
The US Grand Prix is 56 laps long.
The first US Grand Prix was in 1959.
The circuit distance is 5.513km and the fastest lap record is 1:39.347secs*
*Sebastian Vettel 2012
The population of Austin is 1.4m people. If every person pays £1, it will cover Lewis Hamilton's payment for one race.
Austin is the most highly educated city in the United States.
The fastest pit stop in F1 history was recorded in the 2013 United States Grand Prix, with Mark Webber's crew taking just 1.923 seconds to service the Australian's Red Bull car.
Austin has the world's largest urban bat colony. There are 1.5 million bats.
John Watson won the 1983 United States Grand Prix West from 22nd on the grid - the lowest starting position for an F1 winner.
In 1982 there were three F1 grands prix in the USA - at Caesar's Palace, Long Beach and Detroit.
Sebastian Vettel, aged 19, finished eighth on his F1 debut driving for BMW Sauber in the 2007 race in Indianapolis.
Austin has 300 days of sunshine each year.
Ayrton Senna has the most wins by a driver with five.